please answer both

You just won the $62 million lottery. You will receive $2.8 million a year for the next 20 years plus an additional payment of $6 million at the end of 20 years. The interest rate is 14 percent. How much is your lottery prize worth today? (Enter your answer as a positive number rounded to 2 decimal places.) At an interest rate of 13 percent annually, how long will it take for a $1,000 to double? To triple? (Round your answers to 2 decimal places.) Time needed to double Time needed to triple years years